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  • Search for Evidence of Baryogenesis and Dark Matter in B^{+}→ψ_{D}+p Decays at BABAR
    Lees, J P; Kolomensky, Yu G; Koch, H; Cheaib, R; So, R Y; Blinov, V E; Buzykaev, A R; Kozyrev, E A; Kravchenko, E A; Serednyakov, S I; Dey, B; Gary, J W; Long, O; Eisner, A M; Lockman, W S; Chao, D S; Flood, K T; Hitlin, D G; Oyang, J; Meadows, B T; Smith, J G; Wagner, S R; Bernard, D; Bettoni, D; Fioravanti, E; Garzia, I; Luppi, E; de Sangro, R; Finocchiaro, G; Martellotti, S; Patteri, P; Peruzzi, I M; Patrignani, C; Shuve, B J; Lacker, H M; Cochran, J; Prell, S; Gritsan, A V; Lange, D J; Coleman, J P; Hutchcroft, D E; Touramanis, C; Barlow, R J; Lafferty, G D; Cenci, R; Jawahery, A; Neri, N; Cremaldi, L; Summers, D J; LoSecco, J M; Honscheid, K; Gaz, A; Margoni, M; Simi, G; Simonetto, F; Chauveau, J; Ocariz, J; Biasini, M; Manoni, E; Batignani, G; Carpinelli, M; Chrzaszcz, M; Giorgi, M A; Oberhof, B; Paoloni, E; Rizzo, G; Walsh, J J; Smith, A J S; Faccini, R; Pilloni, A; Grünberg, O; Leddig, T; Waldi, R; Aston, D; Cartaro, C; Dunwoodie, W; Fulsom, B G; Hast, C; Luitz, S; MacFarlane, D B; Wilson, J R; Ahmed, H; Bellis, M; Burchat, P R; Ernst, J A; Guttman, N; Peimer, D R; Soffer, A; Izen, J M; Lou, X C; Bianchi, F; De Mori, F; Vitale, L; Martinez-Vidal, F; Beaulieu, A; Bernlochner, F U; Lueck, T; Miller, C; Roney, J M; Sobie, R J

    Physical review letters, 11/2023, Letnik: 131, Številka: 20
    Journal Article

    A new dark sector antibaryon, denoted ψ_{D}, could be produced in decays of B mesons. This Letter presents a search for B^{+}→ψ_{D}+p (and the charge conjugate) decays in e^{+}e^{-} annihilations at 10.58 GeV, using data collected in the BABAR experiment. Data corresponding to an integrated luminosity of 398  fb^{-1} are analyzed. No evidence for a signal is observed. Branching fraction upper limits in the range from 10^{-7}-10^{-5} are obtained at 90% confidence level for masses of 1.0<m_{ψ_{D}}<4.3  GeV/c^{2}. The result is also reinterpreted to provide the first limits on a supersymmetric model with R-parity violation and a light neutralino.

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